iOS

Jailbreak

Cydia

geohot has come through once again for the iPhone community. Earlier this morning he posted a video of blacksn0w:

blacksn0w will unlock both the 3GS and 3G iPhones running 05.11.07 to use on any gsm carrier. blacksn0w will be bundled into a new blackra1n that will be available on November 4th. So if you accidentally updated or restored to 3.1.2 and lost your unlock, you are in luck!

And of course you can find detailed instructions here on MMi on how to do it when the new blackra1n and blacksn0w are released!